1. Marking example: quick-change joint with nominal diameter DN 15mm, quick-change joint 15 (JB/ZQ4434-86).

2. Examples of connection forms: (a) One end is connected to a hose joint, and the other end is an external thread. After adding a sealing washer, it can be directly screwed on the pneumatic and hydraulic cylinders and pneumatic and hydraulic components;

(b) One end is connected to a hose joint and the other end is connected to a "transition joint" (JB/ZQ4437-86), which can be used with various hydraulic cylinders, air cylinders and various types of hydraulic cylinders that use standard pipe joint threads.

Connection of pneumatic and hydraulic components;

(C) One end is connected to the hose joint, and the other end is connected to the connecting "nut" (JB/ZQ4438-56), which can be connected to the joint of the corresponding diameter;

(d) One end is connected to the hose joint, and the other end is connected to the coupling nut, pipe (JB/ZQ4439-86), etc., and welded to the steel pipe through the pipe.